extraction vs pedigree

extraction

noun
  • A person's origin or ancestry. 

  • A removal of a tooth from its socket. 

  • Something extracted, an extract, as from a plant or an organ of an animal etc. 

  • An act of extracting or the condition of being extracted. 

  • An act of removing someone from a hostile area to a secure location. 

pedigree

noun
  • A person's ancestral history; ancestry, lineage. 

  • A chart, list, or record of ancestors, to show breeding, especially distinguished breeding. 

  • The history or provenance of an idea, custom etc. 

  • The ancestry of a domesticated animal, especially a dog or horse. 

  • Good breeding or ancestry. 

adj
  • Having a pedigree. 

  • Purebred. 

verb
  • To determine the pedigree of (an animal). 

How often have the words extraction and pedigree occurred in a corpus of books? (source: Google Ngram Viewer )